气候变化领域集成服务门户(CCPortal): The Modeling of the North Equatorial Countercurrent in the Community Earth System Model and its Oceanic Component

CCPortal

DOI	10.1029/2018MS001521
	The Modeling of the North Equatorial Countercurrent in the Community Earth System Model and its Oceanic Component
	Sun Z.; Liu H.; Lin P.; Tseng Y.-H.; Small J.; Bryan F.
发表日期	2019
ISSN	19422466
起始页码	531
结束页码	544
卷号	11 期号:2
英文摘要	The North Equatorial Countercurrent (NECC) simulated by a coupled ocean-atmosphere model and its oceanic component have been investigated and compared against oceanographic observations. Coupled model simulations using the Community Earth System Model version 2 are compared against ocean-ice simulations forced by the second phase of the Coordinated Ocean-ice Reference Experiments (CORE) data set. The modeled circulation biases behave differently to the west of and to the east of 120°W: the CORE-forced ocean model largely underestimates the NECC transport to the west and the coupled model underestimates it to the east. Further analysis suggests that the surface wind stress and its curl is the most important forcing term for correctly simulating the NECC in both models. West of 120°W, the NECC biases in the ocean model are attributed to the southward movement of the maximum easterly trade winds in the Northern Hemisphere and the associated wind stress curl (WSC) pattern; east of 120°W, the NECC biases in the coupled model are attributed to the weak northward cross-equatorial winds and southwestward gap winds, which lead to a weak WSC gradient at the latitude of NECC. Further analysis confirms that the WSC biases comes mainly from the zonal wind bias, which may in turn relate to the protocol of CORE-II of adjusting reanalysis winds toward satellite data, which include the relative wind effect. ©2019. The Authors.
英文关键词	CESM2; CORE-II; NECC; POP2; QuikSCAT
语种	英语
scopus关键词	Wind stress; CESM2; CORE-II; NECC; POP2; QuikSCAT; Oceanography; atmosphere-ocean coupling; climate modeling; Northern Hemisphere; observational method; QuikSCAT; satellite data; simulation; surface wind; wind stress
来源期刊	Journal of Advances in Modeling Earth Systems
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156952
作者单位	State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China; Institute of Oceanography, National Taiwan University, Taipei, Taiwan; National Center for Atmospheric Research, Boulder, CO, United States
推荐引用方式 GB/T 7714	Sun Z.,Liu H.,Lin P.,et al. The Modeling of the North Equatorial Countercurrent in the Community Earth System Model and its Oceanic Component[J],2019,11(2).
APA	Sun Z.,Liu H.,Lin P.,Tseng Y.-H.,Small J.,&Bryan F..(2019).The Modeling of the North Equatorial Countercurrent in the Community Earth System Model and its Oceanic Component.Journal of Advances in Modeling Earth Systems,11(2).
MLA	Sun Z.,et al."The Modeling of the North Equatorial Countercurrent in the Community Earth System Model and its Oceanic Component".Journal of Advances in Modeling Earth Systems 11.2(2019).